2018-04-10 17:03:59 +02:00
|
|
|
..
|
|
|
|
|
Copyright(c) 2006 to 2018 ADLINK Technology Limited and others
|
|
|
|
|
|
|
|
|
|
This program and the accompanying materials are made available under the
|
|
|
|
|
terms of the Eclipse Public License v. 2.0 which is available at
|
|
|
|
|
http://www.eclipse.org/legal/epl-2.0, or the Eclipse Distribution License
|
|
|
|
|
v. 1.0 which is available at
|
|
|
|
|
http://www.eclipse.org/org/documents/edl-v10.php.
|
|
|
|
|
|
|
|
|
|
SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
|
|
|
|
|
|
|
|
|
|
HelloWorld
|
|
|
|
|
==========
|
|
|
|
|
|
|
|
|
|
Description
|
|
|
|
|
***********
|
|
|
|
|
|
|
|
|
|
The basic HelloWorld example is used to illustrate the necessary steps to setup DCPS entities.
|
2019-02-14 13:03:42 +01:00
|
|
|
Note it is also used in the Getting Started Guide to explain the usage of Eclipse Cyclone DDS.
|
2018-04-10 17:03:59 +02:00
|
|
|
|
|
|
|
|
Design
|
|
|
|
|
******
|
|
|
|
|
|
|
|
|
|
It consists of 2 units:
|
|
|
|
|
|
|
|
|
|
- HelloworldPublisher: implements the publisher's main
|
|
|
|
|
- HelloworldSubscriber: implements the subscriber's main
|
|
|
|
|
|
|
|
|
|
Scenario
|
|
|
|
|
********
|
|
|
|
|
|
|
|
|
|
The publisher sends a single HelloWorld sample. The sample contains two fields:
|
|
|
|
|
|
|
|
|
|
- a userID field (long type)
|
|
|
|
|
- a message field (string type)
|
|
|
|
|
|
|
|
|
|
When it receives the sample, the subscriber displays the userID and the message field.
|
|
|
|
|
|
|
|
|
|
Running the example
|
|
|
|
|
*******************
|
|
|
|
|
|
|
|
|
|
It is recommended that you run the subscriber and publisher in separate terminals to avoid mixing the output.
|
|
|
|
|
|
|
|
|
|
- Open 2 terminals.
|
|
|
|
|
- In the first terminal start the subscriber by running HelloWorldSubscriber
|
|
|
|
|
- In the second terminal start the publisher by running HelloWorldPublisher
|
